张传奇，文铭升，董芳，杨勇，刘馨璐，刘海峰.乙醇汽油燃料特性对直喷增压乘用车性能影响研究[J].内燃机工程,2020,41(5):54-61.
乙醇汽油燃料特性对直喷增压乘用车性能影响研究
Study on the Effect of Ethanol Gasoline Blend Fuels on the Performance of a Gasoline Direct Injection Turbocharged Passenger Vehicle
DOI：10.13949/j.cnki.nrjgc.2020.05.008
关键词:乙醇汽油  理化特性  有害排放物  汽车性能
Key Words:ethanol gasoline  physicochemical properties  harmful emission  vehicle performance
基金项目:国家自然科学基金项目（51922076，51921004）
作者单位
张传奇，文铭升，董芳，杨勇，刘馨璐，刘海峰 1.天津大学 内燃机燃烧学国家重点实验室，天津 300072； 2.中国石化销售有限公司油品技术研究所，天津 300384 
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摘要:使用纯汽油与4种乙醇体积分数为10%的乙醇汽油，在一辆缸内汽油直喷乘用车上研究不同燃料对整车性能的影响。试验结果表明：在新欧洲驾驶循环下，燃用乙醇汽油会增加汽车运行时的百公里油耗，但燃用乙醇汽油汽车的当量油耗则可以低于纯汽油汽车的油耗，说明燃用乙醇汽油燃料的汽车可以实现更高的热效率、更低的碳排放、更低的颗粒物排放和更良好的加速性能。5种燃料中，随芳烃含量升高，汽车油耗、颗粒数、NOx排放整体会呈现上升趋势。综合性能来看，通过燃料优化可以使乙醇汽油高效清洁地应用于整车，但在低车速、冷起动工况下因发动机运转温度较低，其CO排放比纯汽油要高,HC排放比纯汽油低。
Abstract:In order to study the effect of different blend fuels on vehicle performance, five test fuels with different olefin and aromatic hydrocarbon characteristics were prepared from 4 kinds of 10% in volume ethanol gasoline and a pure gasoline, and emission test were conducted with a gasoline direct injection(GDI) supercharged passenger vehicle. The test results show that when the vehicle runs according to the new European driving cycle(NEDC), the use of ethanol gasoline blend fuels will increase the fuel consumption per 100 kilometers of the vehicle, but its equivalent fuel consumption may be lower than the pure gasoline operation, which indicates that the use of ethanol gasoline blend fuels leads to increased thermal efficiency, reduced particulate emissions and good vehicle acceleration performance. As far as physiochemical properties concerned, an increase in the content of aromatics will cause the vehicles fuel consumption, particle numbers(PN) and NOx emissions to rise continuously. In terms of the overall performance of the vehicle, an efficient and clean operation of ethanol gasoline blend fuels can be achieved through fuel optimization. However, compared with pure gasoline operation, the use of ethanol gasoline blend fuels has higher CO and lower HC emissions under low speed and cold start conditions due to a lower engine operating temperature.
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